Ios 项目从头开发 MVVM模式(三)

1.话说，本来想做个聚合查询功能。可是我的重点想研究xmpp聊天功能。所以使用mvvm模式做了全然模式51job主界面的页面。

2.首先给大家看我执行起来的界面。

3.界面非常easy，做这个界面主要是为了比較mvvm模式和mvc模式之间的差别。

4.这个界面的结构是下边这张图片

与mvc相比，我多了一个viewmodel文件。

mvc之前是把业务逻辑和数据放在viewcontroller里边，逻辑复杂的话，别人维护起来非常麻烦。

我就不贴viewcontroller的图片了，我把这个代码上传给大家，大家能够看看，和mvc相比，是不是非常easy维护。代码层级会好一些。明天開始研究iosxmpp的聊天功能，所以会暂停一段时间更新。

没办法，看来仅仅能贴代码了，我仅仅贴viewcontroller和viewmodel的代码。大家能够比較下。

这是viewcontroller

#import <UIKit/UIKit.h>

@class MTSOnlineViewModel;

@interface MTSOnlineViewController :UITableViewController

@property(strong,nonatomic)MTSOnlineViewModel *onlineViewModel;

@end

#import "MTSOnlineViewController.h"

#import "MTSOnlineViewModel.h"

#import "MTSOnlineMenuCell.h"

@interface
MTSOnlineViewController()<MTSOnlineMenuDelegate>

@end

@implementation MTSOnlineViewController

#pragma mark - UIViewController Overrides

- (void)awakeFromNib

{

[superawakeFromNib];

}

- (void)viewDidLoad

{

[superviewDidLoad];

self.onlineViewModel=[[MTSOnlineViewModelalloc]
init];

[self.tableViewsetRowHeight:130.0f];

[self.tableViewsetSeparatorStyle:UITableViewCellSeparatorStyleNone];

@weakify(self);

[self.onlineViewModel.updatedContentSignalsubscribeNext:^(id
x) {

@strongify(self);

[self.tableViewreloadData];

}];

}

-(void)viewWillAppear:(BOOL)animated {

[superviewWillAppear:animated];

self.onlineViewModel.active =YES;

}

#pragma mark - Table View

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

return [self.onlineViewModelnumberOfItems];

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath
*)indexPath

{

MTSOnlineMenuCell *cell = [tableViewdequeueReusableCellWithIdentifier:@"onlinecell"forIndexPath:indexPath];

cell.selectionStyle=UITableViewCellSelectionStyleNone;

cell.delegate=self;

];

return cell;

}

#pragma mark --cell delegate

-(void)pressMenuButton:(MTSMenuType)type title:(NSString*)title;

{

[[[UIAlertViewalloc]
initWithTitle:@"button測试"message:title
delegate:nilcancelButtonTitle:@"确认"otherButtonTitles:nil,nil]
show];

}

@end

这是viewmodel

#import "RVMViewModel.h"

@interface MTSOnlineViewModel :RVMViewModel

@property (nonatomic,readonly)
RACSignal *updatedContentSignal;

@property (nonatomic,readonly)
NSMutableArray *tableDataSource;

-(NSInteger)numberOfItems;

@end

#import "MTSOnlineViewModel.h"

#import "MTSMenuModel.h"

@interface
MTSOnlineViewModel ()

@property (nonatomic,strong)
RACSubject *updatedContentSignal;

@property (nonatomic,strong)
NSMutableArray *tableDataSource;

@end

@implementation MTSOnlineViewModel

-(instancetype)init {

self = [superinit];

if (self ==nil)
returnnil;

self.updatedContentSignal = [[RACSubjectsubject]
setNameWithFormat:@"MTSOnlineViewModel updatedContentSignal"];

self.tableDataSource = [[NSMutableArrayalloc]
init];

@weakify(self)

[self.didBecomeActiveSignalsubscribeNext:^(id
x) {

@strongify(self);

[selfmenuDataSource];

}];

return
self;

}

#pragma mark - Public Methods

-(NSInteger)numberOfItems{

;

==?count:count+;

}

-(void)menuDataSource{

[self.tableDataSourceaddObject:[[MTSMenuModelalloc]
init:@"职位搜索"imagePath:@"jobsearch.png"imagePressPath:@"jobsearch_press.png"type:JobSearch]];

[self.tableDataSourceaddObject:[[MTSMenuModelalloc]
init:@"校园招聘"imagePath:@"campus.png"imagePressPath:@"campus_press.png"type:Campus]];

[self.tableDataSourceaddObject:[[MTSMenuModelalloc]
init:@"职场资讯"imagePath:@"worknews.png"imagePressPath:@"worknews_press.png"type:WorkNews]];

[self.tableDataSourceaddObject:[[MTSMenuModelalloc]
init:@"企业粉丝团"imagePath:@"fans.png"imagePressPath:@"fans_focus.png"type:Fans]];

[self.tableDataSourceaddObject:[[MTSMenuModelalloc]
init:@"My 51job"imagePath:@"my51job.png"imagePressPath:@"my51job_focus.png"type:My51Job]];

[self.tableDataSourceaddObject:[[MTSMenuModelalloc]
init:@"简历中心"imagePath:@"resumecenter.png"imagePressPath:@"resumecenter_focus.png"type:Resumecenter]];

[self.tableDataSource addObject:[[MTSMenuModel alloc] init:@"薪酬咨询"
imagePath:@"salaryquery.png" imagePressPath:@"salaryquery_focus.png" type:Salaryquery]];

[self.tableDataSource addObject:[[MTSMenuModel alloc] init:@"申请记录"
imagePath:@"jobapply.png" imagePressPath:@"jobapply_focus.png" type:JobApply]];

[self.tableDataSource addObject:[[MTSMenuModel alloc] init:@"很多其它"
imagePath:@"themore.png" imagePressPath:@"themore_focus.png" type:TheMore]];

}

@end